Question: What are the modern language which start with the letter thai
Paraphrase: What are the present day dialect which begin with the letter thai
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q1288568 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'thai')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: Thai, Thai, Southern Thai, Southern Thai, Northern Thai, Northern Thai, Thai Song, Thai Song, Thai Sign Language, Thai Sign Language, Phu Thai, Phu Thai, Thaiphum, Thaiphum